Bronchoprovocation challenge testing

Inhalation challenge tests are done to measure the response of your airways to substances that may be causing asthma or wheezing. These tests are also called provocation studies.

During inhalation testing, increasing amounts of a substance are inhaled through a nebulizer, a device that uses a face mask or mouthpiece to deliver the substance in a fine mist (aerosol). Sometimes, increasing amounts of a histamine or methacholine may be inhaled through the nebulizer. Spirometry readings are taken to evaluate lung function before, during and after inhaling the substance.

Providence Health & Services in Oregon is a not-for-profit Catholic network of hospitals, care centers, health plans, physicians, clinics, home health care and affiliated services guided by a Mission of caring that the Sisters of Providence began in the West nearly 160 years ago.